SE8903111L - PROCEDURE AND DEVICE FOR FILTERING A SUSPENSION - Google Patents

PROCEDURE AND DEVICE FOR FILTERING A SUSPENSION

Info

Publication number
SE8903111L
SE8903111L SE8903111A SE8903111A SE8903111L SE 8903111 L SE8903111 L SE 8903111L SE 8903111 A SE8903111 A SE 8903111A SE 8903111 A SE8903111 A SE 8903111A SE 8903111 L SE8903111 L SE 8903111L
Authority
SE
Sweden
Prior art keywords
filter member
suspension
face
flow
point
Prior art date
Application number
SE8903111A
Other languages
Swedish (sv)
Other versions
SE500957C2 (en
SE8903111D0 (en
Inventor
P Haapamaeki
Original Assignee
Sunds Defibrator Rauma Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sunds Defibrator Rauma Oy filed Critical Sunds Defibrator Rauma Oy
Publication of SE8903111D0 publication Critical patent/SE8903111D0/en
Publication of SE8903111L publication Critical patent/SE8903111L/en
Publication of SE500957C2 publication Critical patent/SE500957C2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
    • B01D33/073—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/44—Regenerating the filter material in the filter
    • B01D33/48—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/70—Filters with filtering elements which move during the filtering operation having feed or discharge devices
    • B01D33/705—Filters with filtering elements which move during the filtering operation having feed or discharge devices with internal recirculation through the filter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/28—Position of the filtering element
    • B01D2201/282—Filtering elements with a horizontal rotation or symmetry axis

Abstract

Method and equipment for filtration of a suspension so that the suspension to be filtered is fed from a feed part (4) onto the filter face of a filter member (5), which moves relative the feed part. The pulp layer is formed on the outer face of the filter member and the filtrate flows into the interior of the filter member, and the pulp layer is removed from the filter member at the removing point. After the pulp removing point (17), before the feed point (4), one or several cleaning points (12) are provided wherein liquid is made to flow through the filter member (5) from the inner face of the filter member to the outer face. The flow rate of the liquid that flows through the cleaning point or points is adjusted higher than the rate of any liquid flow that may flow through the rest of the filter member from the inside-face side to the outside-face side.
SE8903111A 1988-10-13 1989-09-21 Method and apparatus for cleaning the filter when filtering a suspension SE500957C2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI884730A FI81019C (en) 1988-10-13 1988-10-13 FOERFARANDE OCH ANORDNING FOER FILTRERING AV SUSPENSION.

Publications (3)

Publication Number Publication Date
SE8903111D0 SE8903111D0 (en) 1989-09-21
SE8903111L true SE8903111L (en) 1990-04-14
SE500957C2 SE500957C2 (en) 1994-10-10

Family

ID=8527202

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8903111A SE500957C2 (en) 1988-10-13 1989-09-21 Method and apparatus for cleaning the filter when filtering a suspension

Country Status (8)

Country Link
US (1) US5051195A (en)
JP (1) JP2844478B2 (en)
AT (1) AT395182B (en)
AU (1) AU620956B2 (en)
CA (1) CA1319621C (en)
DE (1) DE3942724C2 (en)
FI (1) FI81019C (en)
SE (1) SE500957C2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5104011A (en) * 1990-08-03 1992-04-14 Ingersoll-Rand Company Self-cleaning feed apparatus
US5332499A (en) * 1992-10-28 1994-07-26 Spencer Glenn E Self-cleaning filter
US5443726A (en) * 1993-10-13 1995-08-22 Tm Industrial Supply, Inc. Self-cleaning filter assembly
DE4400485C1 (en) * 1994-01-11 1995-04-20 Mann & Hummel Filter Backwashable liquid filter
US5722264A (en) * 1995-08-07 1998-03-03 Beloit Technologies, Inc. Single roll displacement wash press
FI960438A (en) * 1995-09-11 1997-03-12 Ahlstrom Machinery Oy Apparatus and method for cleaning a pulp scrubber from stickies
FR2817486B1 (en) * 2000-12-04 2003-09-05 Poitevine De Filtration Soc INCREASE IN THE ADMISSIBLE FLOW RATE BY ROTARY DRUM SCREENERS
FI121792B (en) * 2003-06-30 2011-04-15 Andritz Oy Method of treating pulp in connection with bleaching of chemical pulp
DE102009011981A1 (en) * 2009-03-05 2010-09-09 Voith Patent Gmbh Purifying recycled water occurring during paper/cardboard production, comprises guiding the recycled water to an inlet side of a flat, conical and/or cylindrical sieve, in which the undesirable materials are retained, by a feeding device
DE102012213769A1 (en) * 2012-08-03 2014-02-06 Voith Patent Gmbh disc filter
US20220355225A1 (en) * 2021-05-10 2022-11-10 Lyco Manufacturing Inc. Externally Fed Screen for Filtration

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US917305A (en) * 1907-09-25 1909-04-06 Carl Arvid Johnson Rotating pulp-strainer.
CH146567A (en) * 1930-02-27 1931-04-30 Busch Thorne Carl Device for the recovery of solid particles from waste water.
DE674193C (en) * 1936-02-18 1939-04-06 Johannes Wiebe Device for cleaning the filter cloth on rotary filters
US2294179A (en) * 1938-10-18 1942-08-25 Hawley Engineering Corp Method for screening burdened fluids
FI26379A (en) * 1950-07-05 1953-06-10 Oulu Oy Apparatus for thickening cellulose or other similar pulp
US2765085A (en) * 1954-02-24 1956-10-02 Black Clawson Co Rotary suction drum filter
DE1117082B (en) * 1957-12-20 1961-11-16 Paul Gustav Henrik Ohlstroem D Cellless suction drum filter
CA1022857A (en) * 1972-06-22 1977-12-20 Hydrocyclonics Corporation Rotary screen filter with continuous cleaning
CA1071540A (en) * 1974-02-04 1980-02-12 A. Bruce Hunter Thickening means and method
US4139412A (en) * 1976-05-13 1979-02-13 Diamond International Corporation Multi-ply continuous paper web former
US4115271A (en) * 1976-09-29 1978-09-19 The Carborundum Company Rotary drum screen
FR2475091A1 (en) * 1980-02-05 1981-08-07 Beaudrey Et Cie Sa E WATER PLUG WITH SAFEGUARD DEVICE FOR LIVING ELEMENTS
AT373309B (en) * 1980-03-18 1984-01-10 Escher Wyss Gmbh PAPER MACHINE
FI65457C (en) * 1982-11-08 1984-05-10 Rauma Repola Oy SAFETY REQUIREMENTS FOR PULLING PROBLEMS AND FILTER VESSELS
DE3423701A1 (en) * 1983-09-12 1985-03-28 Rauma-Repola Oy, Pori METHOD AND DEVICE FOR WASHING A PULP MASS
FI872331A (en) * 1986-05-27 1987-11-28 Anglo Amer Corp South Africa ANORDNING OCH FOERFARANDE FOER SEPARERING AV EN FAST KOMPONENT FRAON EN ANNAN FAST KOMPONENT I SUSPENSION I EN VAETSKA.
US4894121A (en) * 1986-08-07 1990-01-16 Ingersoll-Rand Company Pressure pulp washer
DE3706273A1 (en) * 1987-02-26 1987-10-08 Agie Ag Ind Elektronik Filter apparatus
SE8702740D0 (en) * 1987-07-03 1987-07-03 Sune Persson CLEANING OF WHEELS

Also Published As

Publication number Publication date
AT395182B (en) 1992-10-12
SE500957C2 (en) 1994-10-10
SE8903111D0 (en) 1989-09-21
US5051195A (en) 1991-09-24
DE3942724A1 (en) 1991-06-27
FI884730A (en) 1990-04-14
JPH02154088A (en) 1990-06-13
CA1319621C (en) 1993-06-29
FI884730A0 (en) 1988-10-13
ATA990A (en) 1992-02-15
AU4705489A (en) 1991-06-27
FI81019B (en) 1990-05-31
AU620956B2 (en) 1992-02-27
JP2844478B2 (en) 1999-01-06
DE3942724C2 (en) 1998-11-12
FI81019C (en) 1992-03-24

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Legal Events

Date Code Title Description
NUG Patent has lapsed